Ruabon is one of the ancient parishes of Denbighshire. It comprised the townships of Ruabon (which included the hamlets of Rhuddallt, Hafod, Belan and Bodylltyn), Cristionydd Cynrig (or Y Dref Fawr or Cristionydd Kenrick), Coed Cristionydd, Dinhinlle Uchaf (or Cristionydd Fechan, or Y Dref Fechan), Dinhinlle Isaf, Morton Above (or Morton uwch y Clawdd or Morton Wallicorum), Morton Below (or Morton is y Clawdd), (where Above/Uwch and Below/Is refer to Offa's Dyke), and Morton Anglicorum.
On 24 May 1844, Coed Cristionydd and part of Cristionydd Cynrig went to the new parish of Rhosymedre.
On 3 September 1844, Morton Above went to the new parish of Rhosllannerchrugog.
On 28 October 1879, Dinhinlle Uchaf and the remainder of Cristionydd Cynrig went to the new parish of Penycae.
The first church at Ruabon is believed to have been established by St. Mabon, during the sixth century. It was mentioned in the Norwich Taxation of 1254, at which time the dedication was to St. Collen.
The present church, which is dedicated to St. Mary, dates from the late thirteenth century. It was extensively altered in 1846, and "restored" in 1871/1872.
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For family history information about the church and parish, visit the GENUKI Ruabon page.